Baltimore: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

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Latest air quality data: Baltimore
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Pollution and air quality forecast for Baltimore. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Baltimore:
  1. particulate matter (PM2.5) dust - 6 (Good)
  2. particulate matter (PM10) suspended dust - 6 (Good)
  3. ozone (O3) - 91 (Moderate)
  4. nitrogen dioxide (NO2) - 16 (Good)
  5. sulfur dioxide (SO2) - 2 (Good)
  6. carbon monoxide (CO) - 176 (Good)
Real-time Air Quality Index (AQI) for Baltimore, Wednesday, August 26, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Baltimore today? Is the air polluted in Baltimore?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is moderate in Baltimore. Some pollutants in Baltimore may slightly affect very few hypersensitive individuals. Air pollutants in Baltimore may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Baltimore? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 6 (Good) For comparison, the highest level of PM2.5 in Baltimore in the last 7 days was: 16 (Wednesday, August 26, 2026) and the lowest: 6 (Sunday, August 23, 2026).

What is the level of PM10 today in Baltimore? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Baltimore is: 6 (Good)

How is the O3 level today in Baltimore? (ozone (O3))
91 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
16 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
2 (Good)

How high is the CO level? (carbon monoxide (CO))
176 (Good)



Current data Wednesday, August 26, 2026 at 9:00 PM

PM2,5 6 (Good)

PM10 6 (Good)

O3 91 (Moderate)

NO2 16 (Good)

SO2 2 (Good)

CO 176 (Good)

Data on air pollution from recent days in Baltimore

index 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20 2026-08-19
pm25 16
Moderate		 11
Good		 11
Good		 6
Good		 9
Good		 13
Moderate		 11
Good		 13
Moderate
pm10 16
Good		 11
Good		 11
Good		 6
Good		 9
Good		 13
Good		 11
Good		 13
Good
o3 71
Moderate		 57
Good		 62
Good		 72
Moderate		 83
Moderate		 81
Moderate		 74
Moderate		 73
Moderate
no2 29
Good		 21
Good		 14
Good		 9
Good		 17
Good		 13
Good		 17
Good		 21
Good
so2 2
Good		 2
Good		 2
Good		 1
Good		 2
Good		 2
Good		 2
Good		 2
Good
co 253
Good		 226
Good		 181
Good		 152
Good		 236
Good		 206
Good		 245
Good		 268
Good
data source »

Baltimore

Wednesday, August 26, 2026 at 9:00 PM

PM2,5 6.1 (Good)

particulate matter (PM2.5) dust

PM10 6.1 (Good)

particulate matter (PM10) suspended dust

O3 91 (Moderate)

ozone (O3)

NO2 16 (Good)

nitrogen dioxide (NO2)

SO2 1.9 (Good)

sulfur dioxide (SO2)

CO 176 (Good)

carbon monoxide (CO)

Baltimore

index 2026-08-19 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26
pm25 13 11 13 8.8 6 11 11 16
pm10 13 11 13 9.1 6.1 11 11 16
o3 73 74 81 83 72 62 57 71
no2 21 17 13 17 8.9 14 21 29
so2 1.9 1.7 1.6 1.6 1.3 1.6 1.8 2.1
co 268 245 206 236 152 181 226 253

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — United States

🌦️ WEATHER · 16-DAY FORECASTUnited States🌧️28°RainToday · ↑30° ↓19°💨 7 km/h · 💧 66%Mon24.08🌧️30°19°Tue25.08🌤️32°21°Wed26.08🌧️33°23°Thu27.08☁️36°20°Fri28.08☀️38°19°Sat29.08🌤️40°20°Sun30.08🌧️42°21°Mon31.08🌧️42°29°Tue1.09🌧️41°24°Wed2.09☀️41°26°Thu3.09☀️40°28°Fri4.09🌧️39°28°Sat5.09🌧️24°21°Sun6.09🌧️36°20°Mon7.09☀️39°25°Tue8.09🌧️39°23°pollution-alert.com · August 27, 2026

16-day weather forecast for United States: today around 30°C (rain), lows near 19°C. Daily temperature and conditions, updated every day. Strong wind (about 25 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — United States

☀️ UV INDEX · 16-DAY FORECASTUnited States03681111+7.3UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 25 min7Wed26.087Thu27.087Fri28.087Sat29.087Sun30.087Mon31.087Tue1.097Wed2.092Thu3.095Fri4.098Sat5.096Sun6.097Mon7.095Tue8.097Wed9.097Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in United States today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Baltimore — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Baltimore today?
The current average PM2.5 across Baltimore is about 6 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Baltimore?
Right now PM2.5 in Baltimore averages about 6 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Baltimore?
Over the past week, the highest daily PM2.5 in Baltimore was recorded on Wednesday, August 26 (about 16 µg/m³).
What is the UV index in Baltimore today?
The UV index in Baltimore today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.
Does today's wind help disperse smog in Baltimore?
Strong wind (about 25 km/h) is actively clearing smog and dust away.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.